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March 15th, 2017, 07:43 AM   #1
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Disk and string

There were so many ways to do this. I tried but if you have a better method than please share it. Anyways here was my attempt did I mess up this time?


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March 15th, 2017, 07:59 AM   #2
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Energy conservation is the method I'd use ... I agree with your solution if you accompany it with the correct units for speed.
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March 15th, 2017, 09:28 AM   #3
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Yep, looks fine to me... just missing the units from the final velocity.
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